Zack Estrin is an American television producer and screenwriter. He has produced many episodes in the television series Prison Break, Point Pleasant, Tru Calling, Miracles and Charmed, as well as the 2000 film Stranger Than Fiction. He has also written a number of episodes for Prison Break, Tru Calling, Point Pleasant and Charmed. Estrin, as co-executive producer of Prison Break, is set to write the script of its anticipated spin-off, Prison Break: Cherry Hill, along with Prison Break's executive producer Matt Olmstead, both of whom conceived the idea for spin-off with other executive producer Dawn Parouse.